Heel shank



FIG. 1 is top, left perspective view of a heel shank showing a new design;

FIG. 2 is front, end view of the heel shank of FIG. 1;

FIG. 3 is rear, end view of the heel shank of FIG. 1;

FIG. 4 is a right, side view of the heel shank of FIG. 1;

FIG. 5 is a left, side view of the heel shank of FIG. 1;

FIG. 6 is a top view of the heel shank of FIG. 1; and,

FIG. 7 is a bottom view of the heel shank of FIG. 1.

The broken lines in the drawings represent an environment that form no part of the claim. 

CLAIM The ornamental design for a heel shank, as shown and described. 